Electrochemical characterization of the redox couple of 〔Fe(CN)6〕[3-]/〔Fe(CN)6〕[4-] mediated by a grafted polymer modified glassy carbon electrode

• Radhi Muhammed M.

  Department of Chemistry, Faculty of Science, University Putra Malaysia

• Tan Wee T.

  Department of Chemistry, Faculty of Science, University Putra Malaysia

• Rahman Mohamad Z. B Ab

  Department of Chemistry, Faculty of Science, University Putra Malaysia

• Kassim Anuar Bin

  Department of Chemistry, Faculty of Science, University Putra Malaysia

書誌事項

タイトル別名

• Electrochemical Characterization of the Redox Couple of [Fe(CN)6]3-/[Fe(CN)6]4- Mediated by a Grafted Polymer Modified Glassy Carbon Electrode

抄録

A glassy carbon electrode (GCE) was modified with a grafted polymer GP film (polystyrene grafted with acrylonitrile as a monomer using gamma irradiation) using a solution evaporation method to produce a new modified electrode GP/GCE. The redox process of K₃[Fe(CN)₆] during cyclic voltammetry was studied using the GP/GCE. It was found that the peak separation (ΔE_pa-c) between the redox peaks of ferricyanide ion in an aqueous solution is 82 mV and the current ratio of redox peaks, (I_pa/I_pc), is 1 for the GP/GCE, indicating good reversibility with good conductivity of the modified electrode. Hence, it can be used for voltammetric analysis. The physical properties of the modified electrode GP/GCE include good hardness, high adhesion to the metal surfaces of electrode collectors, solubility and good stability of the GP on GCE at different pH levels. Also, the sensitivity under conditions of cyclic voltammetry is significantly dependent on the pH, the electrolyte used and the scan rate. At different scan rates, two oxidation peaks and two reduction peaks of Fe(III) were observed in a reversible process: Fe(III)/Fe(II) and Fe(II)/Fe(0).

収録刊行物

• JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

  JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 43 (11), 927-931, 2010

  公益社団法人 化学工学会

キーワード

• Cyclic Voltammetry
• Grafted Polymer Modified GC Electrode
• Fe(III)/(II) Redox Couple
• Electrocatalysis

詳細情報

• CRID: 1390001204568334464
• NII論文ID: 10028157373
• NII書誌ID: AA00709658
• DOI: 10.1252/jcej.10we150
• ISSN: 18811299
• ISSN: 00219592
• NDL書誌ID: 10921576
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10921576
• Web Site: http://www.jstage.jst.go.jp/article/jcej/43/11/43_10we150/_pdf
• 本文言語コード: en
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